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package org.aoju.bus.limiter.support.rate.redis;

import org.aoju.bus.limiter.support.rate.RateLimiter;
import org.aoju.bus.logger.Logger;
import org.redisson.Redisson;
import org.redisson.config.Config;

/**
 * @author Kimi Liu
 * @version 6.5.0
 * @since Java 17+
 */
public class RedisRatelimiter extends RateLimiter {

    private String limiterName;

    private RateLimiterRedission ratelimiterRedission;

    /**
     * @param limiterName 名称
     * @param config      配置
     */
    public RedisRatelimiter(String limiterName, Config config) {
        this.limiterName = limiterName;
        this.ratelimiterRedission = new RateLimiterRedission(config);
        Logger.info("RedisRateLimiter named {} start success!", limiterName);

    }

    @Override
    public boolean acquire(Object key, double rate, long capacity) {
        RedisRatelimiterObject rateLimiterObject = ratelimiterRedission.getRedisRatelimiterObject(key.toString());
        return rateLimiterObject.tryAcquire(1, rate, capacity);
    }

    @Override
    public String getLimiterName() {
        return limiterName;
    }


    /**
     * 继承自Redisson 实现自定义api
     */
    public static class RateLimiterRedission extends Redisson {

        public RateLimiterRedission(Config config) {
            super(config);
        }

        public RedisRatelimiterObject getRedisRatelimiterObject(String name) {
            return new RedisRatelimiterObject(connectionManager.getCommandExecutor(), name);
        }
    }

}
